Pocketed separating disk



April 10, 1928.

C. C. INGRAHAM POCKETED SEPARATING DISK- Filed June '7, L926 1191 Patented Apr. 10, 1928.

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QCKE E P EJ BAT NG DISK- primers as Ju a 826- a e N 1am- My invention relates to disk separators of the type known to the trade as the Carter- Mayhew disk separator, and which separator is disclosed and broadly claimed in Letters Patent oftlie United States No. 1,364,247, of date January a, 1921, entitled Grain separator, and provides a certain improvement thereon whereby the original maximum eiliciency oi the disk is main tained. In separators of the type above identified, a plurality of disks are carried on a common axial shaft arrangedto run on an approximately horizontal axis within a hopper or grain container, and such disks are provided with pockets that are adapted to receive certain kinds of material, such as wheat, and to reject certain other kinds of material, such as oats.

In the operation of disk separators of the above character, ithas been found that in the course of time, the grain ormaterial within the container below the disks will become commingled with dust and will form a compact and immovable bed over which the flowing grainwill thereafter travel. It has also been found that under continued use, the base, consisting of compact grain and commingled dust, will build up ridges between the disks and that these ridges in time will out out of action certain of the pockets of the disks, thereby materially decreasing the separating capacity of the disks. My invention provides an extremely simple device that will prevent the formation of ridges between the disks and will. keep all of the space between the disks open and free for the progressive travel of the commingled grain or stock through the container under the separating operation. The means for accomplishing the result just stated preferably consists in providing the disks near their peripheries with laterally projecting cam-acting lugs, the preferred form and arrangement of which is illustrated in the accompanying drawings, wherein like characters indicate like parts throughout the several views.

Referring to the drawings:

Fig. 1 is a fragmentary view partly in elevation and partly in vertical longitudinal section, showing a ortion of a container and a plurality of dis s secured to a common shaft substantially as found in the so-called Carter-Mayhew disk separator;v

Fig. 2 is a plan or face elevation of one of the separating disks, only portions of the pockets being indicated; and

Fig. 3 is a fragmentary perspective showingportion 01 one of the disks and the Cam-acting agitating lugs applied thereto.

, In Fig. 1, a portion of the hopper or. container is indicated by the numeral dead the material to be separated, assumed to be wheat and oats, isiindicated by the character y. The disks 5, which are secured to a common approximately horizontal shaft- .6, are provided with pockets 7, such as found in the disks of the Carter-lVIayhew separator. The cam-acting agitating lugs 8 are preferably cast integral with the disks and, as shown, the said lugs are arranged in opposite pairs,

projecting one from each side of the disk and located near to the peripheries thereof. It is not necessary that the lugs 8 be located in opposite pairs, as illustrated in the drawings, but it is quite important that the lugs on the one disk be circumferentially oiiset' from the lugs on the other disk, so that they do not act in direct opposition. The disks 5 are of annular form, so that the grain may pass through the openings therein, and the annular portions of said disks are connected to the shaft 6 by spokes 9, which, as shown, are formed with crooked portions 10 to compensate for shrinkage in the casting.

Under continued operation of the separator, the grain or stock at the bottom of the container and below the disks will, as above indicated, become mixed with dust and form a quite solid and immovable bed at 2 and up to a line marked'g l/Vith the disks hitherto used, and which disks were not provided with the agitating lugs, there was a tendency for the grain to form compact ridges between the disks,substantially as indicated by the dotted line marked. 3 on Fig. 1. The formation of these ridges y when the agitating lugs are employed is impossible, for under each rotation of the disks, its lug will sweep through the space between adjacent disks almost to awpoint midway between the disks, and by the oil'- set arrangement of the lugs on the adjacent disks, lugs that-Work in the same space between disks will operate alternately to press theintervening grain first in the onedirection and then in the other, thereby positively preventing any building up or formation of a solid or permanentridge between the disks.

found that by the use of the agitating lugs,

the maximum original efficiency of the disks will be maintained.

The agitating lugs should be located close to the peripheries of the disks, so that they cut through the loose grain immediately over the formed bed 11 and do not disturb the loose grain that is higher up and in contact with the pocketed surfaces of the disks.

What I claim is: I

1. As a new article of manufacture, a disk like separator having a pocketed surface and provided with a laterally projecting agitating lug located close to its periphery and projecting from its pocketed surface.

2. In a separator of the kind described, a container and a plurality of laterally spaced pocketed separating disks, said disks having lateral agitating lugs located i1ninediately adjacent to the peripheries thereof and projecting from the pocketed surface" thereof. V

3. In a separator of the kind described, a container and a plurality of laterally spaced pocketed-separating disks, said'disks having laterally projecting agitating lugs, the agitating lugson the one disk being circumferentially spaced in respect to the agitating lug of an adjacent disk.

4. In a separator of the kind described, a container and a plurality of laterally spaced pocketed separating disks, said disks having laterally projecting agitating lugs,

the agitating lugs on the one disk being circumferentially spaced in respect to the agitating lug of an adjacent disk, the said agitating lugs being located immediately adjacent to the peripheries of said disks.

In testimony whereof I afiix my signature.

CHARLES c. INGRAHAM. 

